00485pamaa2200157 4500 0000038833 20090909090000.0 0534029892 372.7 KEN QA135.5 KEN 1984 KENNEDY Guiding Children's Learning of Mathematics Leonard M. Kennedy. 4th ed. Belmont, California: Wadsworth Publishing Company, 1984. ix, 550p.: ill.; 24 cm. Mathematics -- Study and teaching (elementary)